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Spreader challenge #276414
11/26/14 05:31 AM
11/26/14 05:31 AM
Joined: Jun 2012
Posts: 97
The Netherlands
Arjan13 Offline OP
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Arjan13  Offline OP
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Would anybody know how to get the thread going again when this got stuck over the years? We tried with quite a bit of force (including WD40), but without any luck.

[Linked Image]
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Last edited by Arjan13; 11/26/14 05:35 AM.
-- Have You Seen This? --
Re: Spreader challenge [Re: Arjan13] #276415
11/26/14 07:35 AM
11/26/14 07:35 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

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Posts: 12,310
South Carolina
Originally Posted by Arjan13
Would anybody know how to get the thread going again when this got stuck over the years? We tried with quite a bit of force (including WD40), but without any luck.

[Linked Image]
image upload no compression


Yes, I have had to do it. I bought new parts.

That said, WD40 is not a good penetrating lubricant. I have read a thorough study that compared several different types of penetrating lubricants (on rusted steel) and it determined CLEARLY that a 50/50 mixture of acetone and automatic transmission fluid was the best penetrating fluid you could make or buy. They provided torque and all sorts of data. It wasn't even close. So, I recommend trying that before you settle on purchasing new parts.


Jake Kohl
Re: Spreader challenge [Re: Arjan13] #276416
11/26/14 08:33 AM
11/26/14 08:33 AM
Joined: Aug 2011
Posts: 774
Greenville SC
bacho Offline
old hand
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In the US PB-blaster or Kroil are superior to WD-40 in almost everyway. I've been amazed at what they have loosened up over the years.

I don't know what is available in your country, but try some penetrating oil and some heat. The key is some time, spray it on and let it sit. Don't force it.

Re: Spreader challenge [Re: Arjan13] #276419
11/26/14 09:08 AM
11/26/14 09:08 AM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
Carpal Tunnel
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Northfield Mn
LPS-3 is my go to for penetrating oil.


I'm boatless.
Re: Spreader challenge [Re: Karl_Brogger] #276420
11/26/14 09:20 AM
11/26/14 09:20 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
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Ok...so don't listen to me. crazy Steel bolts with nuts soaked in an acid solution for a couple of days (to make the rust and seize) and then tested with various solutions to determine what works best. figures below are actually the torque needed to break the nut loose. You would have to seal the acetone solution so the acetone doesn't evaporate out of your mixture while it sits on the shelf.


Quote

Penetrating oil ..... Average load

None ...................... 516 pounds
WD-40 ................... 238 pounds
PB Blaster .............. 214 pounds
Liquid Wrench ...... 127 pounds
Kano Kroil ............. 106 pounds
ATF-Acetone mix....53 pounds


Jake Kohl
Re: Spreader challenge [Re: Arjan13] #276421
11/26/14 09:34 AM
11/26/14 09:34 AM
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
David Ingram Offline
Carpal Tunnel
David Ingram  Offline
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Clermont, FL, USA
I've had some success saving some really bound up multi tools by soaking them in olive oil for a week or more.


David Ingram
F18 USA 242
http://www.solarwind.solar

"Do or do not. There is no try." - Yoda
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"You don't have to be a brain surgeon to be a complete idiot, but it helps"
Re: Spreader challenge [Re: David Ingram] #276422
11/26/14 09:55 AM
11/26/14 09:55 AM
Joined: Jan 2008
Posts: 3,655
Portland, Maine
T
ThunderMuffin Offline
Carpal Tunnel
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T

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Portland, Maine
Originally Posted by David Ingram
I've had some success saving some really bound up multi tools by soaking them in olive oil for a week or more.


Chicken grease works as well.

In a bind, you can use ostrich secretions...

Re: Spreader challenge [Re: Arjan13] #276423
11/26/14 12:48 PM
11/26/14 12:48 PM
Joined: Jan 2005
Posts: 6,048
Sebring, Florida.
Timbo Offline
Carpal Tunnel
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Sebring, Florida.
Moose drool too...


Blade F16
#777
Re: Spreader challenge [Re: David Ingram] #276424
11/26/14 01:32 PM
11/26/14 01:32 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
Carpal Tunnel
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Originally Posted by David Ingram
I've had some success saving some really bound up multi tools by soaking them in olive oil for a week or more.


I've submerged then in diesel with good results.


One thing with that spreader screw, put a screw driver on it and give it a whack with a hammer. That can help break the corrosion free a bit too.


I'm boatless.
Re: Spreader challenge [Re: Arjan13] #276425
11/26/14 03:03 PM
11/26/14 03:03 PM
Joined: Jun 2012
Posts: 97
The Netherlands
Arjan13 Offline OP
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Ok, so the general solution is to stick it in whatever fluid I can find, and try if it's lossening up a bit ;-)

Re: Spreader challenge [Re: Arjan13] #276426
11/26/14 05:17 PM
11/26/14 05:17 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
Carpal Tunnel
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Northfield Mn
I didn't look at the picture super close and had something else in mind.

Them's some big threads. Should take a penetrating oil pretty well. Is there access from the other end so you can hit it from both sides? Patience will be key. Get it to wiggle a bit, and hit it with oil again and let it sit over night. Assuming the threaded part is stainless and the spreader arm is aluminum, you could heat it with a torch too. The aluminum will expand much faster than the stainless.

When you put it back together. Grease that bitch.

Last edited by Karl_Brogger; 11/26/14 05:18 PM.

I'm boatless.
Re: Spreader challenge [Re: Timbo] #276438
11/27/14 01:21 PM
11/27/14 01:21 PM
Joined: Jan 2004
Posts: 1,884
Detroit, MI
mbounds Offline
Pooh-Bah
mbounds  Offline
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Detroit, MI
Originally Posted by Timbo
Moose drool too...

That's a waste of good beer . . .
[Linked Image]

Re: Spreader challenge [Re: Karl_Brogger] #276440
11/28/14 07:51 AM
11/28/14 07:51 AM
Joined: Aug 2007
Posts: 3,969
B
brucat Offline
Carpal Tunnel
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B

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Originally Posted by Karl_Brogger
...Patience will be key. Get it to wiggle a bit, and hit it with oil again and let it sit over night. Assuming the threaded part is stainless and the spreader arm is aluminum, you could heat it with a torch too. The aluminum will expand much faster than the stainless.

When you put it back together. Grease that...


Agree fully. Time and patience will be required.

Also, some penetrating oils instruct you to hit the object to set up vibrations so that the oil will seep into the threads. I've always thought that to be odd, but if it works???

If you do manage to salvage these parts, be sure to remove all rust and corrosion from the inner and outer threads before reassembly.

As Karl said, use grease (or anti-sieze compound) when reassembling (or on the new parts).

One last thing: On boats, especially those used in salt, if there are parts that you want to be able to remove or adjust in the future, remove them at least once a year, remove any corrosion and salt, and re-grease.

Hope this helps.

Mike

Re: Spreader challenge [Re: Arjan13] #276441
11/28/14 02:27 PM
11/28/14 02:27 PM
Joined: Feb 2007
Posts: 402
Punta Gorda, FL
J
jkkartz1 Offline
addict
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J

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Posts: 402
Punta Gorda, FL
Go get a can of canned cold, used for electrical circuits. Heat it, then blast it with cold. It may shrink it.

When I worked at a power plant, a 1 1/2" main steam control valve mounting stud broke. Day shift got a 1/2" hole through it, afternoons got it to 1". We on midnights heated it with several rosebud torches, then hit it with the canned cold. It went clink and we cleaned up the rest with a hammer and chisel and then ran a tap through it.

Re: Spreader challenge [Re: Arjan13] #276442
11/28/14 02:59 PM
11/28/14 02:59 PM
Joined: Jun 2012
Posts: 97
The Netherlands
Arjan13 Offline OP
journeyman
Arjan13  Offline OP
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The Netherlands
Thanks for all comments again. I will try if I can get it apart like that. If not, I probably will spent some pocket money....

Re: Spreader challenge [Re: Arjan13] #276460
12/01/14 09:37 AM
12/01/14 09:37 AM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
Carpal Tunnel
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Naples, FL
Are both pieces of the same metal (Alu or SS)? Or do you have some galvanic thing going on there?


Jay

Re: Spreader challenge [Re: waterbug_wpb] #276469
12/01/14 01:24 PM
12/01/14 01:24 PM
Joined: Jun 2002
Posts: 1,658
Florida Suncoast, Dunedin Caus...
catman Offline
Pooh-Bah
catman  Offline
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Florida Suncoast, Dunedin Caus...
They are both aluminum.

You can also use Teflon tape to wrap the threads.

One other thing to try before the oil treatment is using something like snobol or any acid toilet bowl cleaner first. Squirt some in there and let it sit for 10-15 minutes rinse it out and do it again. Dry it out and soak it with the oil, Acetone and ATF sounds good. Looking forward to trying it.


Have Fun
Re: Spreader challenge [Re: Arjan13] #276477
12/01/14 05:17 PM
12/01/14 05:17 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
Carpal Tunnel
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Northfield Mn
Acid. That's an interesting idea.


I'm boatless.
Re: Spreader challenge [Re: Karl_Brogger] #276579
12/05/14 03:33 AM
12/05/14 03:33 AM
Joined: Jun 2012
Posts: 97
The Netherlands
Arjan13 Offline OP
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Arjan13  Offline OP
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The Netherlands
Indeed both aluminum, and very fragile. Especially trying to get it moving is dangerous as you are tempted to use the "teeth"on the other side. However we got them loose again, but do not ask me which treatment finally helped. We used everything available from heat to soaking it in oil and other fluids.

Re: Spreader challenge [Re: mbounds] #276583
12/05/14 04:21 PM
12/05/14 04:21 PM
Joined: Jul 2010
Posts: 172
Anacortes
Sloansailing Offline
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Anacortes
Originally Posted by mbounds
Originally Posted by Timbo
Moose drool too...

That's a waste of good beer . . .
[Linked Image]


That is NOT good beer.


Anacortes Rigging.com
Rigging and Yacht Services
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